Myson Technology Inc.

Kuei-hsiang Chen

Jen-Chung Weng

Tung-Hai Wu

Jia-der Hsieh

An image dithering device processing in both time domain and space domain to improve the image quality of an LCD digital display is disclosed. The device comprises a Gamma Table for performing Gamma processing on input signals; a counter module for generating a row counting value and a column counting value by counting the vertical synchronizing signal, horizontal synchronizing signal, and image pixel clock of the LCD image control system; a dithering value generating module for providing a dithering value for each pixel according to the row counting value and the column counting value, the dithering value generating module having a matrix with different value; and a calculation module for performing calculation on the value output form the Gamma Table and the dithering value for decreasing the bits of the input image value so as to fit the input data bits of the LCD display. Since the abandoned lower bite data are expressed in terms of time domain, the image quality and color of the LCD digital display can be increased.

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Hsinchu, Taiwan

Kuei-hsiang Chen